🔧(helm) fix the configuration environment

The configuration also defines the Sentry environment
value, which is currently "production" for every Sentry
event.

- dev: Local
- staging: Staging
- preprod: PreProduction
- prod: Production

src/backend/people/settings.py

@@ -790,6 +790,17 @@ class Feature(Production):
     """
 
 
+class Local(Production):
+    """
+    Local environment settings
+
+    This configuration is used by the developers to run the application
+    locally through the helm files (used for tilt)
+
+    nota bene: it should inherit from the Production environment.
+    """
+
+
 class Staging(Production):
     """
     Staging environment settings